List questions from conjectures | MathQA

Given the $2^n$ primorial divisors, $D(5\#) = \{ 1, 2, 3, 5, 6, 10, 15, 30\}$, why are there always exactly $2^n$ different divisor indicator vectors?

Published on 08 Jan 2023 - 22:13

If $p^k m^2$ is an odd perfect number with special prime $p$ and $p = k$, then $\sigma(p^k)/2$ is not squarefree.

Published on 28 Mar 2026 - 0:30

What is the function E(x)?

Published on 27 Mar 2026 - 13:45

Graphs with all vertices having more neighbors than 2nd order neighbors

Published on 24 Jan 2023 - 14:22

Do all Turing-complete systems converge on a single universal function w.r.t. description redundancy?

Published on 30 Mar 2026 - 14:32

(Almost) found a counterexample to the Beal conjecture

Published on 28 Jan 2023 - 14:37